Tonometer, London, England, 1870-1900

Made:
1870-1900 in London
maker:
Pickard and Curry

Buy this image as a print 

License this image for commercial use at Science and Society Picture Library

Science Museum Group Collection
© The Board of Trustees of the Science Museum

Brass tonometer, for measuring ocular pressure in leather covered case, by Pickard and Curry, 195 Great Portland Street, London, England, 1870-1900.

Tonometers measure pressure within the eye. This is known as intraocular pressure. Glaucoma is a condition where the optic nerve becomes damaged leading to loss of sight. Glaucoma raises intraocular pressure. Tonometers were refined in the 1880s by German physiologist Adolph Eugene Fick (1829-1901). Cocaine was introduced as a local anaesthetic in 1887. This allowed tonometers to be applied directly to the cornea. This brass tonometer was made by instrument makers Pickard and Curry of London.

Details

Category:
Ophthalmology
Object Number:
A606932/1
Materials:
instrument, brass, instrument, glass, instrument, ivory, instrument, steel
Measurements:
overall (main body): 70 mm x 23 mm x 23 mm, .1kg
overall (brass ring): 22 mm 25 mm,
type:
ophthalmic tonometer

Cite this page

Rights

We encourage the use and reuse of our collection data.


Data in the title, made, maker and details fields are released under Creative Commons Zero


Descriptions and all other text content are licensed under a Creative Commons Attribution 4.0 licence

Using our data

Download

Download catalogue entry as json

Download manifest IIIF

Our records are constantly being enhanced and improved, but please note that we cannot guarantee the accuracy of any information shown on this website.